Itagaki probubly knows something, if Nintendo was to launch a new platform in 2011 or even 2012 then dev kits would/should already be in their early forms and in the hands of select developers. Itagaki is a very famous and prominent developer and Nintendo knows they need third party support.
Considering Yoshio Sakamoto recently talked about Nintendo's next home platform. Iwata has been talking about it all year how its going to change the way we play games and deliver features which the Wii could not. Not to mention Miyamoto's mentionings too ever since he first mentioned the console at E3 2006.
Considering the console has been in the works since Wii was announced if not earlier. Since all these prominent developers are bragging or talking about what the next Nintendo system will do. Chances are developers already have the next Nintendo system's dev kits and are hard at work on software.
Keep in mind the next Nintendo system is expected in 2011. At latest 2012!
-JC7
"In God We Trust - In Games We Play " - Joel Reimer













